When you lift a ball off the ground, you are gaining both gravitational and kinetic energy

you are losing both gravitational and kinetic energy

you are gaining gravitational energy and losing kinetic energy.

you are losing gravitational energy and gaining kinetic energy.

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.